KR900007291Y1 - The control devices of alternating current elevator - Google Patents
The control devices of alternating current elevator Download PDFInfo
- Publication number
- KR900007291Y1 KR900007291Y1 KR2019900006667U KR900006667U KR900007291Y1 KR 900007291 Y1 KR900007291 Y1 KR 900007291Y1 KR 2019900006667 U KR2019900006667 U KR 2019900006667U KR 900006667 U KR900006667 U KR 900006667U KR 900007291 Y1 KR900007291 Y1 KR 900007291Y1
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- KR
- South Korea
- Prior art keywords
- current
- elevator
- alternating current
- base
- converted
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
- B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
- B66B1/30—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor
- B66B1/308—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor with AC powered elevator drive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
- B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
- B66B1/30—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor
- B66B1/302—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor for energy saving
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Ac Motors In General (AREA)
- Elevator Control (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안의 1실시예를 도시한 구성도.1 is a block diagram showing an embodiment of the present invention.
제2도는 제1도의 동작을 설명하는 각부의 동작 파형도.2 is an operation waveform diagram of each part explaining the operation of FIG.
본 고안의 교류 엘리베이터의 제어장치에 관한 것으로, 특히 트랜지스터 인버터로 운전되는 교류 엘리베이터의 베이스 드라이브 회로의 개량에 관한 것이다.The present invention relates to a control device of an alternating current elevator, and more particularly, to an improvement of a base drive circuit of an alternating current elevator driven by a transistor inverter.
종래, 이 종류의 장치로서는 일본국 실용신안 공보 소화55-14078호에 개시되어 있는 것과 같이, 상용 교류 전원을 콘버터에 의해서 직류로 변환하고, 이것을 베이스 드라이브 회로에 따라서 제어되는 트랜지스터 인버터로 가변 주파수의 교류전력으로 변환하여, 이 변환된 교류 전력에 의해서 유도 전동기를 구동해서 엘리베이터의 운전을 행하는 것이 있었다.Conventionally, as this type of apparatus, as disclosed in Japanese Utility Model Publication No. 55-14078, a commercial AC power source is converted into a direct current by a converter, and this is converted into a direct current by a transistor inverter controlled according to a base drive circuit. Some convert to AC power and drive the induction motor by the converted AC power to operate the elevator.
그러나, 종래 예에 있어서, 베이스 드라이브 회로는 모터 전원, 즉 인버터를 구성하는 트랜지스터의 콜렉터 전류의 크기에 관계없이 일정한 베이스 전류를 흐르게 하므로, 생각되는 최대의 콜렉터 전류를 흐르게 할 수가 있는 베이스 전류로 설정하여 두는 것이 필요하며, 베이스 드라이브 회로가 커짐과 동시에, 코스트도 높은 것으로 되어 버린다고 하는 문제점이 있었다.However, in the conventional example, since the base drive circuit allows a constant base current to flow regardless of the magnitude of the collector current of the transistors constituting the motor power source, that is, the inverter, the base drive circuit is set to a base current capable of flowing the maximum collector current to be considered. There is a problem that the base drive circuit becomes large and the cost becomes high.
본 고안의 목적은 상기와 같은 문제점을 해소하기 위하여 이루어진 것으로, 소형이며, 값이 싼 베이스 드라이브회로를 제공하는 것이다.The object of the present invention is to solve the above problems, and to provide a compact and inexpensive base drive circuit.
본 고안에 관한 제어장치는 타려형 포워드 방식의 스위칭 전원을 사용해서 베이스 드라이브 회로의 전원을 이룩함과 동시에, 베이스 드라이브 전원의 스위칭 제어를 엘리베이터의 제어회로로써, 실시하는 것에 의해 모터 전류에 대응한 베이스 드라이브 전원 전압으로 되도록 한 것이다.The control device according to the present invention achieves the power supply of the base drive circuit by using a forwarding type switching power supply, and simultaneously performs the switching control of the base drive power supply as the control circuit of the elevator to respond to the motor current. It is to be the base drive power supply voltage.
본 고안에 있어서의 교류 엘리베이터의 제어장치는 베이스 드라이브 전원 전압을 모터 전류에 따라서 증감시키기 때문에, 인버터의 트랜지스터에 흐르는 베이스 전류를 필요 이상으로 흐르는 일이 없게 하므로, 베이스 드라이브 회로는 소형이며, 싼 값으로 제작할 수가 있다.The control device of the alternating current elevator in the present invention increases and decreases the base drive power supply voltage in accordance with the motor current, so that the base current flowing through the transistor of the inverter is not caused to flow more than necessary, so the base drive circuit is compact and inexpensive. Can be produced.
유도 전동기, (5)는 엘리베이터의 권상기, (6)은 로프, (7)은 엘리베이터 카, (8)은 추를 나타낸다. 또 (9a)∼(9c)는 모터 전류 검출기, (10)은 엘리베이터 제어회로, (12)는 톱니파 발생기, (13)은 비교기, (15)는 트랜스 포머, (10)은 스위칭용 트랜지스터, (17)은 스나버, (18)은 정류 다이오드, (19)는 평활용 콘덴서, (20)은 베이스 전류 제한용 저항, (21)은 베이스 전류 통전용 트랜지스터를 각각 나타내며, 상기 제어 회로(10)에서는 모터 전류 검출기(9a)∼(9c)에 의한 검출값의 크기에 대응한 출력(10a)를 비교기(13)로 송출한다.The induction motor, 5 denotes a hoist of an elevator, 6 denotes a rope, 7 denotes an elevator car, and 8 denotes a weight. 9a to 9c are motor current detectors, 10 are elevator control circuits, 12 are sawtooth generators, 13 are comparators, 15 are transformers, and 10 are switching transistors. 17 denotes a snubber, 18 denotes a rectifier diode, 19 denotes a smoothing capacitor, 20 denotes a base current limiting resistor, 21 denotes a base current-carrying transistor, and the control circuit 10 In this case, the output 10a corresponding to the magnitude of the detected value by the motor current detectors 9a to 9c is sent to the comparator 13.
상기 제1도의 구성에 의한 동작을 제2도의 파형 도면을 참조하여 설명한다.The operation by the configuration of FIG. 1 will be described with reference to the waveform diagram of FIG.
제어회로(10)는 모터 전류가 적을때는 출력(10a)에 적은 전압을 출력한다. 이 톱니파를 비교기(13)로서 비교하면, 비교기(13)의 출력은 H 레벨 기간이 짧은 펄스 파형으로 된다.The control circuit 10 outputs a small voltage to the output 10a when the motor current is small. When the sawtooth wave is compared as the comparator 13, the output of the comparator 13 is a pulse waveform having a short H level period.
따라서, 트랜지스터(16)의 ON 기간도 짧아져서, 트랜스 포머(15)를 거쳐서 얻어지는 평활 콘덴서(19)의 출력이 작아진다.Therefore, the ON period of the transistor 16 also becomes short, and the output of the smoothing capacitor 19 obtained through the transformer 15 becomes small.
이에 따라서 베이스 전류도 작은 값만 흐른다. 이와는 역으로 모터 전류가 클 때는 이상과는 역의 동작으로 되어 베이스 전류는 큰 값으로 되다.Accordingly, the base current flows only a small value. On the contrary, when the motor current is large, the operation is reversed from the above, and the base current becomes large.
따라서 모터 전류, 즉 트랜스터의 콜렉터 전류에 따라서 필요한 베이스 전류만을 흐르게 하므로, 베이스 드라이브 회로의 구성이 소형이며 값싼 것으로 할 수 있다.Therefore, only the required base current flows according to the motor current, that is, the collector current of the transformer, so that the configuration of the base drive circuit can be made compact and inexpensive.
그리고, 제1도에서는 스위칭 전원으로서 포워드 방식으로 도시하고 있으나, 제어회로에서 그 출력전압이 제어될 수 있는 것이라면 어떠한 구성의 스위칭 전원이라도 좋다.Incidentally, although FIG. 1 shows a forward power as the switching power supply, the switching power supply of any configuration may be used as long as the output voltage can be controlled in the control circuit.
이상과 같이, 본 발명에 의하면 모터 전류, 즉 트랜지스터의 콜렉터 전류에 따라서 필요한 베이스 전류만을 흐르게 하였기 때문에, 베이스 드라이브 회로의 구성이 소형이며, 값싼 것으로 할 수가 있다.As described above, according to the present invention, since only the base current required according to the motor current, that is, the collector current of the transistor, flows, the configuration of the base drive circuit is small and inexpensive.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019900006667U KR900007291Y1 (en) | 1986-03-07 | 1990-05-18 | The control devices of alternating current elevator |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP49669 | 1986-03-07 | ||
JP61049669A JPS62207194A (en) | 1986-03-07 | 1986-03-07 | Controller for ac elevator |
KR1019860008773A KR870008772A (en) | 1986-03-07 | 1986-10-20 | Control device of AC elevator |
KR2019900006667U KR900007291Y1 (en) | 1986-03-07 | 1990-05-18 | The control devices of alternating current elevator |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019860008773A Division KR870008772A (en) | 1986-03-07 | 1986-10-20 | Control device of AC elevator |
Publications (1)
Publication Number | Publication Date |
---|---|
KR900007291Y1 true KR900007291Y1 (en) | 1990-08-13 |
Family
ID=27293700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019900006667U KR900007291Y1 (en) | 1986-03-07 | 1990-05-18 | The control devices of alternating current elevator |
Country Status (1)
Country | Link |
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KR (1) | KR900007291Y1 (en) |
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1990
- 1990-05-18 KR KR2019900006667U patent/KR900007291Y1/en not_active IP Right Cessation
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